Use Meshtastic Radio as a Library (Refactor or Rewrite Radio Code?)

[broglep]

This is a continuation of https://meshtastic.discourse.group/t/how-to-use-meshtastic-as-a-library/8294

I would also like to be able to use the meshtastic radio part independent of the rest of the meshtastic firmware.

If we find enough people interested in this, maybe we could think about an coordinated effort to untagle the firmware and separate the MeshService and RadioInterface? Or even extract / rewrite parts of that radio code as a library to serve as a stable future foundation for expansion of the Meshtastic ecosystem (both for the device firmware as well as other use cases)

The current firmware shows quite a lot of signs of organic growth over the past years and would probably benefit from bit of untangling.